chore: strip Co-authored-by trailers in lefthook hooks

Author: Patel230

lefthook.yml

@@ -0,0 +1,14 @@
+# Install: lefthook install
+# Skip once: LEFTHOOK=0 git commit -m "..."
+
+prepare-commit-msg:
+  commands:
+    strip-co-authored-by:
+      run: |
+        sed '/^[Cc]o-[Aa]uthored-[Bb]y:/d' "{1}" > "{1}.tmp" && mv "{1}.tmp" "{1}"
+
+commit-msg:
+  commands:
+    strip-co-authored-by:
+      run: |
+        sed '/^[Cc]o-[Aa]uthored-[Bb]y:/d' "{1}" > "{1}.tmp" && mv "{1}.tmp" "{1}"